Golf-club



G. W. MATTERN.

GOLF CLUB.

APPLlcATloN FILED AUG. 12. 1919.

, 153835,65@ Patentedafulyf, 1921..

Cil-FORGE W. MATTERN, OF DAYTON, OHIO, ASSIGNOR TO THE CRAWFORD, VMCGrItliGlOB,I

AND CANBY COMPANY, 0F DAYTON, OHIO. A CORPORATION OF OHIO.

GOLF-CLUB.

' Specification of Letters Patent.

Patenten .iuiy 5, 1952i.

Application filedv August 12, 1919. Serial No. "$16,956.

To all whom it may concern.'

Be it known that I, GEORGE W. MATTERN, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Golf-Clubs, of which the following is a specification.

My invention relates to golf clubs, and more particularly to a reinforced stri-king face therefor. n

The object of thel invention is to simplify the structure as well as the means and mode of reinforcing golf club heads, whereby they may not only be economically manufactured, but will be more eflicient in iise, and lively in action affording long distance iiights of the ball, and unlikely to get out of repair.

A further object of the invention is to provide improved means for anchoring both the inserted face plate of the club head, and an inserted impact plug embedded in the striking face. y

A further object 'of the invention is to provide a series of impact plugs embedded in the striking face, in such relation one with the other, as to afford a substantially uniform or equalized action over a comparatively large area thus to some extent coinpensating for some inaccuracies of the players stroke.

A further object of theinvention is to provide means for overcoming disadvaiitages due to expansion and contraction of the inserted body. 1 ,i

With the above primary and other incidental objects in view, as will more fully appear in the specification, the invention consists of the features of construction, the parts, and combinations thereof, and the mode of operation or their equivalents as hereinafter described and set forth in the claims.

Referring to the drawings, Figure 1 is a pers ective view of a head of a golf club to wiicii the present invention has been applied. Fig `2 is a bottom sectional plan view substantially online 2 2 of Fig. 1. Fig. 3 is a perspective view of a modification of the construction shown in Figs. l and 2. Fig. 4 is a detailed sectional view substantiallyv on line 4 4 of Figi. 3. Fig. 5 is a detail perspective view of the insert-materials prior to being assembled. Fig. 6 is a perspective View of the assembled insert materials before being separated inte seetions of proper lengths'. Fig. 7 is a detailed perspective View of one of the insert sections prepared for embedding` in the head of the club.

c l r l c Like parts are indicated by similar characters of reference throughout the several views.4

The invention herein shown and described is particularly adapted for embodiment in drivers and brassies. ln the drawings there is shown a club of which l is the head and 2 the usual handle shaft. It haslong been the practice to provide the striking face 3 of the head l with an inserted face plate 4 of fiber or some similar material. Such face plate 4 has usually been cemented or glued in the recess or mortise of the head l, and further` secured by a sei'ies of dowel pins inserted through the face plate 4 into the head 1. In the present instance in lieu of 4extending the dowels through the .face plate 4, there are provided diagonally disposed dowel pins 5, located coincident with the edge of the face plate 4, which intersect the marginof the face plate and slightly overhang Jthe same as shown in Fig. 2. These` diagonal or inclined dowel pins 5 serve to securely lock the face plate 4 in position without interfering with' the insertion of the impact plug hereafter referred to.

In order to provide a quick acting solid striking surface which will give distance toY the ball an impact plug v6 of ivory or other material possessing the desired characteristics is embedded in the face ofthe head 1,. While ivory is a most desirable material so far as its action upon the ball is concerned, it possesses the disadvantage of a wide range of expansion and contraction under varying climatic and temperature conditions. As a result of the high factor of eX- pansion and contraction, attempts to cement an ivory impact plug in the head l of the club has not been entirely successful. The contraction of the plug under such conditions caiises it to be loosened in its seat or socket and eventually entirely disengaged from the club'. To overcome this difficulty in the present construction, theimpact plug 6 of ivory or other suitable Vmaterial is positively locked or anchored in its adjusted osition. To this end the im act plug 6 efore being positioned in the ead, is incased in a sleeve 7 .of material possessing a low factor of expansion and contraction, such as lengths of the insert or plug material, afterbeing turned to proper gage, and like lengths of -iiber tubing as shown at 9 and 1() respectively in Fig. .5. The tubing and insert or core are accurately sized or proportioned-to closelyiit each other. 'lhe enterior surface of the core or insert 9 is slightly roughened or scored as is also the' interior surface of the tube 10. The core or insert 9 after being coated with a waterproof adhesive cement is pressed or driven tightly within the tube 10. rlfransverse holes are then drilled diametrically through the tube 10 and the inclosed core.- or insert 9 at measured intervals as indicated in Fig.

' 6. The transverse 'locking pins 8 are then inserted throughpthese holes and the ends of the pins are upset 0r riveted and subse quently dressed oif flush with the periphery of the tube 10. To relieve any stress or strain uponthe parts and to obv'iate the danger of splitting the insert core 9, the transverse holes for the pins 8 are preferably thugh not necessarily drilled on alternating diameters, as indicated in Fig. 6. After the insert core 9 is' cemented within the tube 10 and locked by the transverse- -pins 8, this assembled body is se'vered into sections as shown. in Fig. 7 by sawing it transversely between the pins 8.. Eachof the sections so formed comprises an impact plug or .insert for a golf club head. The head` 1 is prepared to receive such inserts by being thoroughly dried in a dry kiln or oven, until substantially all moisture is evaporated therefrom. While in this dry condition a hole is bored through the face plate 4 linto the head 1 to receive the im; pact plug or insert. llt may be here stated that the face plate 4 and dowel pins 5 are preferably not fitted to the head until after it has been dried as before mentioned. The periphery of the insert or impact'plug as shown in Fig. 7 is then slightly roughened and coated with a waterproof adhesive cement, and is driven firmly within the hole or socket in' the kiln dried head 1. 'The club head lupon removal from the dry kiln, almost immediately begins to absorb mois# ture from the atmosphere which tends to swell the wood causing it to contract upon the inserted impact plug. The sleeve 7,

. whether of ber or other material possesses a lowfactorof expansion and contraction', and. is not materially effected by either excessive moisture or the lack thereof. Having-been accurately fitted to` a thoroughly assente dried head l, there is litt-le or no tendency for the sleeve 7 to become loosened by changes of humidity or temperature. rlhe plug 6 'being iirmly and positively locked in engagement with the sleeve 7 by means of the transverse pins 8, cannot become disengaged from'the head regardless of any relative expansion or contraction of the parts. By this means the disadvantage of a loose insert is overcome.

ln Fig. 1 the head has been shown provided with a single impact plug or insert ot comparatively large size. To meet with the peculiarities of plays, strokes, and idiosyncrasies of individual players as well as to compensate somewhat for inaccuracies of their stroke by providing` a more extended striking area., there is shown in Fig.` 3 a modification of the construction shown in Fig. 1,` in which siX impact plugs constructed,

tral plug positioned somewhat Abelow thel center of the striking face, around which is arranged a series of plugs of smaller diameter, positioned in 'different radial relations with the central larger plug. rlhe arrangement is such'that if the pla-yer vthrough inaccuracy of stroke fails to engage the ball fairly upon-the central larger impact plug, he can hardly fail to engage it with one of the smaller adjacent impact plugs, and thus although not possessing the skill of the expert, he achieves to a` very great degree the same advantage as..does the more expert player with the single impact plug, shown in Fig. l.

While the 'locking dowels 5 shown in' Figs.

V1 and 2 may be also employed in a construction shown in Fig. 3 as indicated by dotted lines therein, itis possible to achieve a similar result by arranging the outer series of impact plugs in diagonal or @inclined relation as shown at 11 in Fig. 4. As shown in Fig. 4, impact .plugs themselves achieve .i

the same locking function as the dowels 5. lt is to be understood thatthe sleeve4 and core of veach of the. impact plugs shown in Fig. 3, are interlocked by the transverse pins 8 as before described i This inclined relation of the inserts or im pact plugs, in relation one with the other. has a three fold purpose. lt afords a dovetailed or locking effect to secure the face plate immovably in position. lt will be obvious that the face plate cannot be withdrawn without further removing the diagonally disposed inserts or impact plugs. A further object achieved by this inclined or between the several inserts.

diagonal relation of the inserts 'is the wider distribution" of the vibration .and force of impact to the head. The insert plugs eXtend` .vibrations oi' force of the impact substantially in the line of their length, and thus distribute or diffuse the force of the blow throughout the head of the plug. Another, none the less important feature of this construrtion is increased strength of the club, by affording more material of the club head In -other words the material is not removed wholly, in a' conbetween the insert 'receiving holes, or sockets,

and hence the head is materially strengthened.

From the above description it will be ap-v parent that there is thus provided a device of the character described possessing the 'particular features of advantage before enu merated as desirable, but which' obviously is susceptible'l of modification in its form, proportions, detail construction and arrange` ment of parts without departing from the principle involved or sacrificing any of its advantagesA v l/Vhile in order tocomply with the statute the invention has been described in language more or less specific as to structural features,

it is to be understood that the invention isl not limited to the specific details shown, but' that the means and construction herein disclosed comprise but one of several modes of putting the invention into effect, and the invention is therefore claimed in any of its forms or modifications Within the legitimate and valid scope of the appended claims.

Having thus described my invention,- I claim: v

1. The combination with av golf club of a body ofivory', and a sleeve of fiber inclosing the body of ivory, said body and inclosing sleeve being embedded in the striking face of the club, substantially as specified.

2. The combination with a golf club of a body of ivory, a sleeve of fiber inclosing the body of ivory and a transverse pin transX- ing the sleeve and body, said sleeve and in.

closed body being embedded in the striking face of the club.

3. The combination vwith a golf club, of an insert stationarily embedded Lin thestriking vthe striking face of the club.

5. The combination with a golf club of an insert embedded in the striideg feee ef the club, a sleeve of characteristically dierent material surrounding the insert and -means positively engaging the insert and sleeve one, with the other.

6. The combinationwith a golf club of two concentricbodies of characteristically different material positively locked in engagement one with the other, said interlocked bodies being embedded in the striking face of ,the club.

7. The combination with a golf club` of a pluralityv of inserts embedded in the striking face of the club, each insert comprising a plurality of concentric bodies, the axes of said inserts being inclined in relation one with the other.

8. The herein described method of axing inserts in golf club heads, comprising, incasing the insert in a tubular sleeve pinning the insert and sleeve by a transvers pin extending therethrough, drying the head o'f the `golf club, forming in the dried head a socket to receive the incased'insert, and embedding the same therein. l a

9. The herein described method of aiiXing inserts in golf club heads comprising incasing theinsert in a tubular sleeve, passing a retaining pin transversely through the sleeve and insert, and securing said sleeve within and to the carrying body.

10. The combination with a golf club of an 4inlaid face plate in the striking surface of the club, and diagonally disposed dowel pins f'also inserted Ain the striking surface and inembedded in the striking face of the club and surrounding both said inserts.

12. rlhe combination with a golf club of a plurality of solid inserts permanently embedded in the striking face of the club, each insert comprising a plurality of concentric bodies, substantially as specified,

'13. The combination with a golf club of a plurality' of nonintersecting inserts embedded in the striking face thereof in grouped relation wherein one of said inserts is embedded at substantially the normal striking point, the remaining inserts of the group being positioned in' a series concentrically arranged in relation with the first mentioned insert, and adjacent thereto.

14. The combination with a golf club of a plurality of inserts embedded in the striking face thereof and spaced one from the other in grouped relation wherein a plurality of said inserts are positioned in an arcuate series substantially concentric in relation with a single insert @the group.

f plnality of inserts embedded in the striking face tlieieo'n in an aicuate seriesand an additional insert located Within the arcuate se'fies of inserts and substantially concentric with tlie aicuate grouping of the ist mentioned inseits.

le, The combination with a golf club of a cii'cilai insert located inthe striking face thereof2 and a series of additional circular inserts of lesser size grouped about the ii'st mentioned insert extending in substantially tangential relation therewith.

l?, The combination with a golf club9 of an inlaid face plate in the striking suiace of tlie club, and diagonally disposed retaining studs inseited in the striking surface of the club, in planes substantially perpendiculai to the plane of the inlaid face plate, said studs being so positioned as to overhang the marginal edges of said plate. o Y

18. The combination with a golf club, of a plurality of inserts embedded in the striking face oi the club, said inserts being inclined in relation one with another, substantially as and for the purpose speciied. ln testimony Wlieeo'l llave hereunto set my hand this 6th day of August A. D. 1919. GERGE W, Mi'l'lllRNs i Witnesses;

F; L. Vitamin5 G, G. HELMIG. 

